Proverbs 17:20
The one who has a perverse heart does not find good, and the one who is deceitful in speech falls into trouble.
Psalm 18:26
You prove to be reliable to one who is blameless, but you prove to be deceptive to one who is perverse.
Proverbs 3:32
for one who goes astray is an abomination to the Lord, but he reveals his intimate counsel to the upright.
Proverbs 6:12-15
A worthless and wicked person walks around saying perverse things;
Proverbs 8:13
The fear of the Lord is to hate evil; I hate arrogant pride and the evil way and perverse utterances.
Proverbs 10:10
The one who winks his eye causes trouble, and the one who speaks foolishness will come to ruin.
Proverbs 10:14
Those who are wise store up knowledge, but foolish speech leads to imminent destruction.
Proverbs 10:31
The speech of the righteous bears the fruit of wisdom, but the one who speaks perversion will be destroyed.
Proverbs 18:6-7
The lips of a fool enter into strife, and his mouth invites a flogging.
Ecclesiastes 10:12
The words of a wise person win him favor, but the words of a fool are self-destructive.
James 3:6-8
And the tongue is a fire! The tongue represents the world of wrongdoing among the parts of our bodies. It pollutes the entire body and sets fire to the course of human existence -- and is set on fire by hell.